Quick-detachable lamp and socket



June 4, 1935. N. L. GULJAS. JR

QUICK DETACHABLE LAMP AND SOCKET Filed March 6, 1934 I 2 Sheets-Sheet l 7 w 6 I|TWHA$ 0/ 4/ l L w a we mm \M .2; 5 3 70 6 al 3 3 2 H 0 g 5 mv j Invenlor wi ow 1. 6% J.

flllorney um 4, 3935. N. GULJAS. JR

QUICK DETACHABLE LAMP AND SOCKET Filed March 6, 1954 2 Sheets-Sheet 2 Inventor JV'CZOZQSJ Gzfs Patented June 4, 1935 UNITED STATES PATENT OFFICE 1 Claim.

This invention appertains to new and useful improvements in quick-detachable connectors for lamps, and more particularly to the combination of a lamp base and socket structure therefor.

Another important object of the present invention is to provide a combination lamp and lamp socket of the quick-detachable type wherein the parts are durably constructed and not susceptible to the development of ready defects.

Other important objects and advantages of the invention will become apparent to the reader of the following specification.

In the drawings:-

Figure 1 represents a vertical sectional view through the socket, fragmentarily showing the electrical connector and the lamp base in side elevation.

Figure 2 represents a vertical sectional view through the socket structure, showing a connector and lamp in side elevation.

Figure 3 represents a transverse sectional view taken substantially on line 3-3 of Figure 1.

Figure 4 represents a vertical sectional view through the connector, fragmentarily showing the lamp in side elevation.

Figure 5 represents a vertical fragmentary sectional view taken substantially on line 5-5 of Figure 4.

Figure 6 represents a perspective view of the spring contacts and carrier frame therefor.

Figure 7 represents a fragmentary sectional view through the base portion of the lamp.

Referring to the drawings wherein like numerals designate like parts, it can be seen in Figure 1 that numeral 5 represents a di-electric shell provided with external threads at one end and against which the cap 6 is engageable. This cap 6 is flanged circumferentially and with this is engaged the internally threaded and flanged ring I which can be fed onto the threaded end portion of ,the shell 5 for suitably securing the cap 6 to the shell 5.

The opposite end of the shell 5 is flanged inwardly,.as at 8, while the intermediate portion of this shell 5 is offsetrinwardly to define a shoulder 9 upon which the di-electric core II) can engage, while the cap 5 engages against the opposite end thereof to firmly clamp the core l within the shelll The cap 6 is provided with a neck II and an internally threaded bushing l2. A set screw I3 is disposed through the neck Handinto the bushing l2 and obviously, a suitable conductor- 'cable can be secured therein.

The bottom side of the core I0 is provided with a polygonal-shaped boss l4 which is received by the rectangular shaped opening l of the frame I6, which frame is provided with a pair of upstanding leg members |'l-l8 and a pair of depending spring arms Iii-l9, each having its 5 free end bent outwardly, these outwardly bent, free ends being diverged in the manner shown in Figure 6, while slightly inwardly of each of these outwardly bent end portions is a curved or grooved portion 20 which receives the circuml0 ferentially extending rib 2| on the metallic jacket 22 of the lamp base, the lamp bulb being denoted by numeral 23.

The base of the lamp has a core 24, as shown in Figure 7, of di-electric material, the end of which is provided with a contact 25 connected by the usual conductor 26 extending through the base. 'Obviously,-this conductor 26 connects to one side of the filament (not shown), while the other, end of the filament is connected by the conductor 21 to the metallic jacket 22. Numeral 28 represents a contact which is of spring material and substantially U-shaped, as s shown in Figure 4, one leg portion of which is provided with the extension 29 and the transversely curved head portion 30 adjacent the cam element 3|. Numeral 32 represents a binding post at one side of the core l0, while extending from this is the spring arm 33 terminating in I an arcuate-shaped head 34 and located in op- 30 posed relation with respect to the head 30.

The cam member 3| is interposed between the heads 3ll34 and is carried'by a shaft 35 journaled into the core l0 and provided-with a knob 36. I

The legs l1-l8 of the frame l6 extend upwardly into the core [0 the leg l8 being connected to a binding post 38 by a strap 33. A bolt extends through the lower end of this strap 39 and through the members l1-l8 and is 40 equipped witha nut 41 whereby the sections of the core II) will be retained together.

Obviously, the lamp base vcan be pushed, up into the shell 5 and Will-readily snap between ,the depending spring legs l9-l9 and when the cam 3| which forms a connector bridge initself is in the position shown in Figure 4, current will be supplied by way of a suitable conduotor (not shown) to the filaments of the lamp.

While the foregoing specification sets forth the invention in specific terms, it is tobe understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new is:

An electric switch socket structure comprising a hollow dielectric body divided into a pair of sections, a switch in the body including a pair of spring contacts and a rotary contactor operative against said contacts, a knob for actuating the contactor, said body provided with ,8. depending boss, a frame provided with a pair of upstanding leg members having openings in their end portions, said frame having an opening therein through which the frame snugly receives the boss, a pairof lamp base engaging and retaining arms depending from the frame, a

conductor extending fromone of the switch contacts, a, U shaped spring contact on the lower end of the conductor with one leg portion thereof extending through the bottom of the boss to engage with the contact of a lamp held between the spring arms, said upstanding leg members being'disposed along opposite sides of the body, said body having a bore therethrough through which the openings of the leg members are alignable, a bolt for disposition through the openings of the legs and the bore of the body, for holding the sections of the dielectric body and retaining arms frame together.

NICHOLAS LOUIS GULJAS, JR. 

